CN102410263A - Bladeless fan device - Google Patents
Bladeless fan device Download PDFInfo
- Publication number
- CN102410263A CN102410263A CN2010102914095A CN201010291409A CN102410263A CN 102410263 A CN102410263 A CN 102410263A CN 2010102914095 A CN2010102914095 A CN 2010102914095A CN 201010291409 A CN201010291409 A CN 201010291409A CN 102410263 A CN102410263 A CN 102410263A
- Authority
- CN
- China
- Prior art keywords
- outlet frame
- opening
- fan assembly
- relief opening
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
- F04F5/466—Arrangements of nozzles with a plurality of nozzles arranged in parallel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A bladeless fan device which relates to a fan device comprises a base (1) and a wind outlet frame (2); a component for producing high-pressure air flow is arranged in the base; the wind outlet frame (2) with closed loops is mounted on the base, and comprises internal passages for receiving the high-pressure air flow coming from the base and exhaust outlets (3), the high-pressure air flow is jetted via the exhaust outlets, openings are defined by the closed loops of the wind outlet frame, and the air outside the fan device is sucked by the air flow jetted out of the exhaust outlets via the openings; and the bladeless fan device is characterized in that: the wind outlet frame is provided with a plurality of closed loops, a plurality of openings are defined by the closed loops of the wind outlet frame, an exhaust outlet is arranged on the closed loop wall of each opening, and all the openings of the wind outlet frame can adopt a like shape. The bladeless fan device can provide a large area of uniform-speed air flow, and is attractive.
Description
Technical field
The present invention relates to a kind of fan assembly.
Background technique
The one Chinese patent application that on May 6th, 2009, publication number was CN 101424278A (application number: 200810177843.3) disclose a kind of on-bladed fan assembly that is used to produce air stream; This kind fan assembly comprises outlet frame or the nozzle that is installed on the pedestal; Said pedestal holds and is used to produce the member through the high pressure draught of said outlet frame; Said outlet frame comprises and is used to receive inner passage and the relief opening from the high pressure draught of said pedestal; High pressure draught is sprayed through said relief opening, and the outlet frame with single circular closure loop extends and limits opening, the air-flow suction that said fan assembly air outside is sprayed from said relief opening through said opening in quadrature ground basically about axis; Wherein, Each all has said outlet frame and said pedestal along the degree of depth on the said axial direction, and wherein, the degree of depth of said pedestal is no more than the twice of the said outlet frame degree of depth.The compact structure of this kind fan assembly can produce air-flow to compare even velocity from the emission output face of fan.
Because the outlet frame or the nozzle of this kind fan assembly are the outlet frame or the nozzle of a single closed circle loop, are difficult to provide uniform airflow in large area.When the aperture of single closed circle loop more greatly, when particularly very big; Near the speed of the air-flow that flows out air-flow that flow out at the middle part of the opening that is limited from the single closed circle loop of outlet frame and the loop wall near said opening differs greatly, and can't obtain large-area uniform air flow.Therefore necessary the improvement is so that the user really enjoys comfortable nice and cool effect on a large scale.
Summary of the invention
The present invention aims to provide a kind of improved fan assembly to overcome above-mentioned defective of the prior art.The purpose of this invention is to provide a kind of on-bladed fan assembly, this fan assembly in use can provide large-area speed uniform airflow.Further purpose of the present invention makes the on-bladed fan assembly that is provided have effect attractive in appearance.
In order to achieve the above object, a kind of technological scheme of the present invention's employing is: be used to produce the on-bladed fan assembly of air stream, it comprises: pedestal is provided with the member that is used to produce high pressure draught in said pedestal; Outlet frame with closed circuit; Said outlet frame is installed on the said pedestal; Said outlet frame comprises and is used to receive inner passage and the relief opening from the high pressure draught of said pedestal; High pressure draught is sprayed through said relief opening, and the closed circuit of said outlet frame limits opening, the air-flow suction that said fan assembly air outside is sprayed from said relief opening through said opening; It is characterized in that said outlet frame has a plurality of closed circuits, a plurality of closed circuits of said outlet frame limit a plurality of openings, and on the loop wall near each opening, all are provided with relief opening.
The another kind of technological scheme that the present invention adopts is: be used to produce the on-bladed fan assembly of air stream, it comprises: pedestal is provided with the member that is used to produce high pressure draught in said pedestal; Outlet frame with closed circuit; Said outlet frame is installed on the said pedestal; Said outlet frame comprises and is used to receive inner passage and the relief opening from the high pressure draught of said pedestal; High pressure draught is sprayed through said relief opening, and the closed circuit of said outlet frame limits opening, the air-flow suction that said fan assembly air outside is sprayed from said relief opening through said opening; It is characterized in that said outlet frame has a plurality of closed circuits, a plurality of closed circuits of said outlet frame limit a plurality of openings, and each opening has shapes similar.
The number of the closed circuit that said outlet frame adopts is many more, and large-area speed uniform airflow is provided more easily.Consider the production technology problem; The number of its closed circuit is usually between 2 to 30; Be its accordingly by the number of the opening that a plurality of closed circuit limited of said outlet frame usually between 2 to 30, the number of preferred opening is between 2 to 10.
It may be noted that especially; Because it is the structure of a plurality of openings that said outlet frame adopts a plurality of closed circuits; Aspirated effectively by the air-flow that sprays from said relief opening through said opening in order to make said fan assembly air outside; Two row's relief openings need be set on one section public loop between two adjacent openings, and several rows of gas port wherein is near one of them opening, and another row's relief opening wherein is near wherein another opening.
Help strengthening the air-flow pumping function that air outside is sprayed from said relief opening through said opening quilt, said outlet frame comprises the coanda surface that is provided with near said relief opening.
About the shape of said opening, can be circular, oval, round rectangle, also can be the part annular, can also be other shape.
Said relief opening can be the hole shape relief opening, also can be slot-shaped relief opening, can also be the relief opening of other shape, the continuous basically slot-shaped relief opening that preferably is provided with along the loop wall of said outlet frame.
About term " high pressure draught " be meant that air pressure is higher than the air-flow of fan around atmospheric pressure.
About term " on-bladed " is to be used for describing that air-flow discharges forward from the fan assembly or ejection and need not use impeller assembly.Through this definition, vaneless fan assembly can be counted as has output face or the launch site that does not have the blade or the wing, and air-flow is along roughly therefrom discharging or launch towards user's direction.
The on-bladed fan can provide main air to originate by multiple source apparatus or generating means and produce high pressure draught, for example pump, generator, motor or comprise engine rotor and other fluid delivery systems of rotating equipment such as impeller blade.The air quantity that produces through motor makes passes inner passage arrival outlet frame the environment of air draught from room or fan assembly outside, sprays from relief opening then.Therefore, do not lie in the required parts of fan secondary function such as extending to power source and component about the illustrative purposes of term " on-bladed ", such as motor.The example of fan secondary function comprises the swing of illumination, adjusting and fan.
The described member that is used to produce high pressure draught can comprise also can comprise dc brushless motor and mixed flow impeller by motor-driven impeller.
The present invention has following good effect:
Because the outlet frame of apparatus of the present invention adopts a plurality of closed circuits to be the structure of a plurality of openings and on the loop wall of each opening, all to be provided with relief opening; Significantly improved on the whole the fan assembly air outside through opening by the ability that air-flow aspirated of spraying from relief opening; Make fan assembly that large-area speed uniform airflow can be provided, make the user can experience comfortable nice and cool effect on a large scale; In addition, because each opening has shapes similar, be easy to make up and obtain attractive in appearance, the welcome fan assembly of different shape.
Description of drawings
Fig. 1 is the structural representation of the on-bladed fan of existing technology;
Fig. 2 is the schematic perspective view of the outlet frame of on-bladed fan shown in Figure 1;
Fig. 3 is the schematic representation of on-bladed fan assembly of the present invention;
Fig. 4 is second embodiment of on-bladed fan assembly of the present invention;
Fig. 5 is the 3rd embodiment of on-bladed fan assembly of the present invention;
Fig. 6 has showed the 4th embodiment of on-bladed fan assembly of the present invention.
Embodiment
Fig. 1 shows the structure of the on-bladed fan of existing technology.Fan assembly comprises the outlet frame 2 with closed circle loop, and this outlet frame 2 limits opening 4.Again with reference to figure 2, outlet frame 2 comprises circular inner passage, relief opening 3 and near coanda (Coanda) surface (not drawing among the figure) of relief opening 3.The coanda surface is arranged so that the air communication of leaving and be directed flowing through coanda surface from relief opening 3 crosses Coanda effect and be exaggerated, and relief opening 3 is the slot-shaped relief opening of ring-type.Outlet frame 2 is connected on the pedestal 1 and by this base supports.
Obviously, the outlet frame of this kind fan assembly is a single closed circle loop, about the X axisymmetric, is difficult to provide uniform airflow in large area.When the aperture of this closed circle loop is big, differ greatly near the speed of the air-flow that flows out the air-flow that flows out by the middle part of the opening 4 of outlet frame and the loop wall near opening 4, can't obtain the speed uniform airflow.
Fig. 3 is the schematic representation of on-bladed fan assembly of the present invention.Visible from figure, apparatus of the present invention comprise: pedestal 1 is provided with the member that is used to produce high pressure draught in pedestal; Be installed in the outlet frame 2 on the pedestal 1; This outlet frame 2 has three closed circuits and in X-axis direction certain thickness (not drawing among the figure) is arranged; Three closed circuits define three openings 4; Each opening cross-sectional dimension of (direction that gushes out facing to air-flow is seen) forwardly all is provided with a continuous basically slot-shaped relief opening 3 greater than its cross-sectional dimension in the wings on the loop wall near each opening 4; Can be clearly from figure visible, all be provided with the continuous basically slot-shaped relief opening of two rows on two sections public loops in the middle of being positioned at, two row's relief openings respectively near separately around opening 4; Outlet frame 2 has continuous inner passage and near the coanda of relief opening 3 surface (not drawing among the figure), and the coanda surface is arranged so that the air communication of leaving and be directed flowing through the coanda surface from relief opening 3 crosses Coanda effect and be exaggerated.
In a preferred embodiment, each slot-shaped relief opening 3 is set at being positioned near the loop wall in opening rear (direction facing to air-flow gushes out is seen) near respective openings.
When this kind fan assembly uses; Be positioned at the member operation work of the generation pressurized gas of pedestal 1, air is drawn into from the import 5 of the outer casing underpart that is positioned at pedestal 1, sends in the inner passage of outlet frame 2 through after boosting; And be deflated mouthful 3 ejections and flow out three openings 4; The air-flow that is sprayed is directed flowing through coanda surface and amplifies, and is entrainmented from the air of ambient, external environment, and air-flow that is ejected and the air-flow that is entrainmented combine the total air flow that penetrates forward from outlet frame 2 to produce.
The combination of entrainmenting and amplifying make from the total air flow of each opening 4 of fan assembly greater than near jeting area not such as the air-flow of the fan assembly output on coanda surface.
In the present embodiment, because outlet frame 2 has adopted three closed circuits, the shape of its three three openings 4 that closed circuit limited is identical; It all is annular opening; This kind structure improved greatly on the whole the fan assembly air outside through opening by the ability that air-flow aspirated of spraying from relief opening, and make the large size air-flow of outflow have the uniform characteristic of speed, in addition; Three openings are of similar shape, and make whole device have effect attractive in appearance.
Fig. 4 shows second embodiment of on-bladed fan assembly of the present invention.From figure, be easy to find out that present embodiment comprises: pedestal 1 is provided with the member that is used to produce high pressure draught in said pedestal; Be installed in the outlet frame 2 on the pedestal 1, this outlet frame has four closed circuits, and these loops have constituted four rounded square openings 4, on the loop wall near four openings, all is provided with continuous basically slot-shaped relief opening.
In a preferred embodiment, described outlet frame 2 can be connected with pedestal 1 through a pipeline.
Fig. 5 shows the 3rd embodiment of on-bladed fan assembly of the present invention.From figure, be easy to find out that present embodiment is similar with embodiment shown in Figure 4, just the shape of four openings that loop limited of outlet frame 2 is different, and four openings that loop limited 4 of this outlet frame 2 are four openings that fillet is fan-shaped.
Fig. 6 shows another embodiment of on-bladed fan assembly of the present invention.As can be seen from the figure, the outlet frame 2 of present embodiment is an outlet frame with nine closed circuits, and the opening 4 that each closed circuit limited all is circular, on the loop wall near each opening, all is provided with slot-shaped relief opening 3.Its closed circuit of this kind outlet frame is many, is easy to obtain large-area speed uniform airflow.
Although showed and described and thought preferred embodiments of the invention at present, obvious, those skilled in the art can carry out various changes and improvement, and does not deviate from the scope of the present invention that is limited appended claims.
Claims (10)
1. on-bladed fan assembly that is used to produce air stream, it comprises: pedestal (1) is provided with the member that is used to produce high pressure draught in said pedestal; Outlet frame (2) with closed circuit; Said outlet frame is installed on the said pedestal; Said outlet frame comprises and is used to receive inner passage and the relief opening (3) from the high pressure draught of said pedestal; High pressure draught is sprayed through said relief opening, and the closed circuit of said outlet frame limits opening (4), the air-flow suction that said fan assembly air outside is sprayed from said relief opening through said opening; It is characterized in that said outlet frame has a plurality of closed circuits, a plurality of closed circuits of said outlet frame limit a plurality of openings, and on the loop wall near each opening, all are provided with relief opening.
2. on-bladed fan assembly that is used to produce air stream, it comprises: pedestal (1) is provided with the member that is used to produce high pressure draught in said pedestal; Outlet frame (2) with closed circuit; Said outlet frame is installed on the said pedestal; Said outlet frame comprises and is used to receive inner passage and the relief opening (3) from the high pressure draught of said pedestal; High pressure draught is sprayed through said relief opening, and the closed circuit of said outlet frame limits opening (4), the air-flow suction that said fan assembly air outside is sprayed from said relief opening through said opening; It is characterized in that said outlet frame has a plurality of closed circuits, a plurality of closed circuits of said outlet frame limit a plurality of openings, and each opening has shapes similar.
3. on-bladed fan assembly as claimed in claim 1 is characterized in that, has shapes similar each opening that a plurality of closed circuit limited of said outlet frame.
4. like the described on-bladed fan assembly of one of claim 1 to 3, it is characterized in that, is 2 to 30 the number of the opening that a plurality of closed circuit limited of said outlet frame.
5. like the described on-bladed fan assembly of one of claim 1 to 3, it is characterized in that said relief opening is slot-shaped relief opening.
6. like the described on-bladed fan assembly of one of claim 1 to 3, it is characterized in that, said opening be shaped as circle.
7. like the described on-bladed fan assembly of one of claim 1 to 3, it is characterized in that, said opening be shaped as round rectangle.
8. like the described on-bladed fan assembly of one of claim 1 to 3, it is characterized in that the member that is used to produce high pressure draught comprises by motor-driven impeller.
9. like the described on-bladed fan assembly of one of claim 1 to 3, it is characterized in that said relief opening is the continuous basically slot-shaped relief opening along the closed circuit wall setting of said outlet frame.
10. like the described on-bladed fan assembly of one of claim 1 to 3; It is characterized in that; Said outlet frame comprises the coanda surface that is provided with near said relief opening, and said relief opening is the continuous basically slot-shaped relief opening along the closed circuit wall setting of said outlet frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102914095A CN102410263A (en) | 2010-09-18 | 2010-09-18 | Bladeless fan device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102914095A CN102410263A (en) | 2010-09-18 | 2010-09-18 | Bladeless fan device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102410263A true CN102410263A (en) | 2012-04-11 |
Family
ID=45912523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102914095A Pending CN102410263A (en) | 2010-09-18 | 2010-09-18 | Bladeless fan device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102410263A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878062A (en) * | 2012-11-03 | 2013-01-16 | 任文华 | Bladeless fan |
| CN102966607A (en) * | 2012-11-19 | 2013-03-13 | 姜国忠 | Air multiplier |
| CN104047907A (en) * | 2013-03-12 | 2014-09-17 | 合肥科盛微电子科技有限公司 | Bladeless fan capable of assembling fan head |
-
2010
- 2010-09-18 CN CN2010102914095A patent/CN102410263A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878062A (en) * | 2012-11-03 | 2013-01-16 | 任文华 | Bladeless fan |
| CN102966607A (en) * | 2012-11-19 | 2013-03-13 | 姜国忠 | Air multiplier |
| CN102966607B (en) * | 2012-11-19 | 2015-08-05 | 姜国忠 | A kind of air multiplier |
| CN104047907A (en) * | 2013-03-12 | 2014-09-17 | 合肥科盛微电子科技有限公司 | Bladeless fan capable of assembling fan head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 310052 Hangzhou City, Binjiang District Province, No., Shing Road, Garden Court, building 2, room 3, unit 1402, room 3191 Applicant after: Ren Wenhua Address before: 310003, room 2, unit 129, 402 lane, lane, Hangzhou, Zhejiang Applicant before: Ren Wenhua |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120411 |